Answer:
Letter (A) or (C) Correct me if I'm wrong
Explanation:
I hope it helps you btw Can I get a brainliests please ☺️
Internal Coherence: the quality of being logically integrated, consistent, and intelligible on the inside. (knowledge/educated)
External Coherence: the quality of being logically integrated, consistent, and intelligible on the outside. (looks/personality) <span>
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Since its a sibling, and siblings tend to be in a person's close circle of people, informal speech is used.
I think the answer is instructor.